A satellite constellation is a group of satellites that work together to provide coverage over a specific area of the Earth. These satellites are usually positioned in specific orbits to ensure that they can communicate with each other and provide continuous data or services, such as global positioning or weather monitoring. One well-known example of a satellite constellation is the Global Positioning System (GPS), which consists of multiple satellites orbiting the Earth. This system allows users to determine their precise location anywhere on the planet by receiving signals from several satellites simultaneously.